Shorthand for rolling three dice and adding the results.
2d10 involves summing two ten-sided dice. 2d6-1 would sum two standard dice and subtract 1 from the result. This shorthand was popularized by Dungeons & Dragons players during the 1980s.
Original definition 31 January 2011 7:57 AM by religon.
reports from OrcCon 2008.
